プログレッシブ和英中辞典(第３版)の解説
はしゃぐ【はしゃぐ】
〔浮かれ騒ぐ〕make merry; 〔上機嫌である〕be in high spirits
- 子供たちがはしゃぎ回っている
The children are 「romping around [((口))horsing around／((口))cutting up]. - 彼女はいつになくはしゃいでよくしゃべった
She was unusually high-spirited and talkative. - 党が選挙に勝ったのはいいが，はしゃぎ過ぎるな
It's fine that the party won the election, but you mustn't make 「too much [((口)) too big a thing] of it.